Move base to DEPS

base/memory/manual_constructor.h

-// Copyright (c) 2012 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// ManualConstructor statically-allocates space in which to store some
-// object, but does not initialize it.  You can then call the constructor
-// and destructor for the object yourself as you see fit.  This is useful
-// for memory management optimizations, where you want to initialize and
-// destroy an object multiple times but only allocate it once.
-//
-// (When I say ManualConstructor statically allocates space, I mean that
-// the ManualConstructor object itself is forced to be the right size.)
-//
-// For example usage, check out base/containers/small_map.h.
-
-#ifndef BASE_MEMORY_MANUAL_CONSTRUCTOR_H_
-#define BASE_MEMORY_MANUAL_CONSTRUCTOR_H_
-
-#include <stddef.h>
-
-#include "base/compiler_specific.h"
-#include "base/memory/aligned_memory.h"
-
-namespace base {
-
-template <typename Type>
-class ManualConstructor {
- public:
-  // No constructor or destructor because one of the most useful uses of
-  // this class is as part of a union, and members of a union cannot have
-  // constructors or destructors.  And, anyway, the whole point of this
-  // class is to bypass these.
-
-  // Support users creating arrays of ManualConstructor<>s.  This ensures that
-  // the array itself has the correct alignment.
-  static void* operator new[](size_t size) {
-    return AlignedAlloc(size, ALIGNOF(Type));
-  }
-  static void operator delete[](void* mem) {
-    AlignedFree(mem);
-  }
-
-  inline Type* get() {
-    return space_.template data_as<Type>();
-  }
-  inline const Type* get() const  {
-    return space_.template data_as<Type>();
-  }
-
-  inline Type* operator->() { return get(); }
-  inline const Type* operator->() const { return get(); }
-
-  inline Type& operator*() { return *get(); }
-  inline const Type& operator*() const { return *get(); }
-
-  template <typename... Ts>
-  inline void Init(const Ts&... params) {
-    new(space_.void_data()) Type(params...);
-  }
-
-  inline void Destroy() {
-    get()->~Type();
-  }
-
- private:
-  AlignedMemory<sizeof(Type), ALIGNOF(Type)> space_;
-};
-
-}  // namespace base
-
-#endif  // BASE_MEMORY_MANUAL_CONSTRUCTOR_H_